Advanced Course. xxii + 853 pp. $3.00.
College Chemistry. xx + 689 pp. $2.25.
Briefer Course. xxiv + 516 pp. $1.25.
Elementary Course. x + 287 pp. 80 cents.
Astronomy.
By Simon Newcomb and Edward S. Holden.
Advanced Course. xii + 512 pp. $2.00.
Briefer Course. x + 366 pp. $1.20.
Elementary Course. xv + 446 pp. $1.20.
Geology.
By Thomas C. Chamberlin and Rollin D. Salisbury, Professors in the University of Chicago. 3 vols. 8vo.
Vol. I. Geological Processes and their Results. xix + 654 pp. $4.00.
Vols. II and III. Earth History. xxxvii + 1316 pp. (Not sold separately.) $8.00.
Physiography.
By Rollin D. Salisbury, Professor in Chicago University.